Add support for extra keys validation for model fields #1671
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CodSpeed Performance ReportMerging #1671 will not alter performanceComparing Summary
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dmontagu
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Mar 19, 2025
davidhewitt
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Oct 20, 2025
…ntic-core#1671) This is only implemented for model fields but this could be done for dataclass/typed dict as well. I only went with models for now as it is the only data type where extra validation can be customized through `__pydantic_extra__`. This also only implements validation support. Extra values can have serialization customized but I don't think we should also allow serialization customization for extra keys as we don't have such a concept for "normal" field names. Original-commit-hash: f256531
davidhewitt
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to pydantic/pydantic
that referenced
this pull request
Oct 22, 2025
…ntic-core#1671) This is only implemented for model fields but this could be done for dataclass/typed dict as well. I only went with models for now as it is the only data type where extra validation can be customized through `__pydantic_extra__`. This also only implements validation support. Extra values can have serialization customized but I don't think we should also allow serialization customization for extra keys as we don't have such a concept for "normal" field names. Original-commit-link: pydantic/pydantic-core@f256531
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Change Summary
Part of pydantic/pydantic#9400.
This is only implemented for model fields but this could be done for dataclass/typed dict as well. I only went with models for now as it is the only data type where extra validation can be customized through
__pydantic_extra__.This also only implements validation support. Extra values can have serialization customized but I don't think we should also allow serialization customization for extra keys as we don't have such a concept for "normal" field names.
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Checklist
pydantic-core(except for expected changes)